Retired Marine Brandon Moore pulled his very own To Catch a Predator sting operation to punish the man sexually abusing his daughter. Thanks to this quick planning, Moore was able to get the evidence needed to put his daughter’s abuser behind bars.

Back in 2014, Moore’s wife rushed him to the hospital for what they believed to be a brain aneurysm. While they were gone, their so-called friend and neighbor Sean Foster visited their home and molested their daughter, Madalyn.

The Moores opened up about the incident to the Daily Beast. Madalyn, now 16, gave her permission for her name to be printed in the hopes that her story would encourage survivors to speak up.

The family tried to get help from the police, but were told that they couldn’t immediately arrest Foster without evidence.

So Moore set a trap.

Using his daughter’s phone, he lured Foster to their home while the rest of the family was safe in another location. He waited in a bathroom, shower running, for Foster to open the door seeking Madalyn. Instead of a vulnerable teen, Foster found an enraged veteran.

What happened next was recorded on Moore’s phone. You can hear the audio below, or read the transcript provided by the Daily Beast.

“What the fuck are you doing?! What have you done to her?!” Brandon howls.

“I haven’t done anything to her!” Foster shrieks.

“You fucking get down right now! You fucking touch a 14-year-old girl! While I’m in the fucking hospital! You’re lucky I don’t fucking kill you!”

Foster made a run for it and the phone picked up the ensuing fight.

“Oh my God, you broke my fucking glasses!” the child molester whined.

“It was between four and five minutes that I had to keep taking him down” until police arrived, Brandon told The Daily Beast. “He shoved me off of him and went running to the front door, so I tackled him from behind and choked him and kneed him in the face until police got there.

“I beat him up pretty bad,” Brandon remembered. “By the time police arrived, my foot was swelling up from kicking him.”

Fast forward to April 2016. The above tape was used to convict Foster of burglary, three counts of indecency with a child by contact, and two counts of indecency with a child by exposure. He was sentenced to 55 years in prison and a $40,000 fine.

Much of the most damning evidence was provided by Madalyn herself, who testified against her abuser without her family present. The retired Marine now says that his daughter is his “new hero.”